Company lists · Data refreshed September 2026

Top 25 Domestic relations law firms based in Canada

RevenueBase identified 610 domestic relations law firms headquartered in Canada as of September 2026 and tracks 4,178 professional contacts across them, including 2,136 with verified work emails and 245 with mobile numbers. Toronto is the largest hub.

This list covers domestic relations law firms headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review
610Companies
4,178Contacts tracked
2,136Verified emails
245Mobile numbers
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The 25 largest domestic relations law firms based in Canada

Ranked by team size
Top 25 of 610 domestic relations law firms based in Canada, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to domestic relations law firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceToronto, ON, Canada51-20087 contacts →

Partial evidence

“Mills & Mills LLP is a Toronto law firm established 130 years ago which provides legal services of the highest quality to businesses and individuals, as well as to charitable and…”

Source: RevenueBase Database · checked Sep 1, 2026
2Partial evidenceBurlington, ON, Canada51-20075 contacts →

Partial evidence

“Legal services (primarily business law)”

Source: RevenueBase Database · checked Sep 1, 2026
3Indirect evidencePerth, ON, Canada51-20067 contacts →

Indirect evidence

“Welcome to Mann Lawyers LLP.”

Source: RevenueBase Database · checked Sep 1, 2026
4Indirect evidenceLangley, BC, Canada51-20061 contacts →

Indirect evidence

“For over 50 years, RDM Lawyers has been helping families, homeowners, businesses and Fraser Valley residents with all their legal needs.”

Source: RevenueBase Database · checked Sep 1, 2026
5Partial evidenceCalgary, AB, Canada11-5059 contacts →

Partial evidence

“Located in the heart of Calgary, Alberta, DBB is a full-service law firm that has been serving Calgarians for over 40 years.”

Source: RevenueBase Database · checked Sep 1, 2026
6Indirect evidenceOttawa, ON, Canada51-20056 contacts →

Indirect evidence

“Sicotte Guilbault focuses on providing clients with a wide range of specialized corporate, commercial, municipal, employment, real estate, litigation & alternate dispute…”

Source: RevenueBase Database · checked Sep 1, 2026
7Indirect evidenceWinnipeg, MB, Canada51-20047 contacts →

Indirect evidence

“Our lawyers make what’s complex clear in language that’s easy to understand.”

Source: RevenueBase Database · checked Sep 1, 2026
8Partial evidenceHalifax, NS, Canada11-5043 contacts →

Partial evidence

“MDW Law is a trusted leader in family and personal injury law delivering personalized legal solutions with excellence and empathy.”

Source: RevenueBase Database · checked Sep 1, 2026
9Partial evidenceToronto, ON, Canada11-5042 contacts →

Partial evidence

“MacDonald & Partners has chosen to practice exclusively in the area of Family Law.”

Source: RevenueBase Database · checked Sep 1, 2026
10Partial evidenceNanaimo, BC, Canada11-5041 contacts →

Partial evidence

“Heath Law LLP is a full-service law firm based in Nanaimo providing legal services in a wide range of practice areas including: Business and Commercial Transactions; Real Estate…”

Source: RevenueBase Database · checked Sep 1, 2026
11Partial evidenceCalgary Alberta, AB, Canada51-20038 contacts →

Partial evidence

“At Crossroads Law, our goal is to help people successfully navigate the family law system to reach the best outcome for them and their family.”

Source: RevenueBase Database · checked Sep 1, 2026
12Partial evidenceWaterloo, ON, Canada51-20035 contacts →

Partial evidence

“Giffen Lawyers is an innovative well-respected law firm located in the heart of Waterloo Region.”

Source: RevenueBase Database · checked Sep 1, 2026
13Indirect evidenceToronto, ON, Canada11-5030 contacts →

Indirect evidence

“When life, family or profession presents challenges, that’s precisely when Bales Beall comes into its own.”

Source: RevenueBase Database · checked Sep 1, 2026
14Partial evidenceToronto, ON, Canada11-5029 contacts →

Partial evidence

“Nussbaum Law is a legal practice dedicated exclusively to Family Law in Toronto.”

Source: RevenueBase Database · checked Sep 1, 2026
15Partial evidenceCalgary, AB, Canada11-5021 contacts →

Partial evidence

“Daunais McKay & Harms is a boutique family law firm which offers a full range of family law services.”

Source: RevenueBase Database · checked Sep 1, 2026
16Partial evidenceLondon, ON, Canada11-5019 contacts →

Partial evidence

“The Family Law Group has a team of experienced lawyers dedicated to serving clients who are considering separation or have separated from their spouse or partner.”

Source: RevenueBase Database · checked Sep 1, 2026
17Indirect evidenceQuebec, QC, Canada11-5018 contacts →

Indirect evidence

“L'expertise et la réputation du cabinet en droit de la famille n'est plus à faire.”

Source: RevenueBase Database · checked Sep 1, 2026
18Partial evidenceVancouver, BC, Canada11-5017 contacts →

Partial evidence

“At Onyx Law Group, our mission is to walk with our clients to be their trusted advocate.”

Source: RevenueBase Database · checked Sep 1, 2026
19Partial evidenceDartmouth, NS, Canada11-5016 contacts →

Partial evidence

“Conrad Dillon Robinson Law - Where Legal Excellence Meets Personal Service.”

Source: RevenueBase Database · checked Sep 1, 2026
20Indirect evidenceCalgary, AB, Canada11-5016 contacts →

Indirect evidence

“Leading lawyers assisting clients through complex divorce, property, support and parenting matters.”

Source: RevenueBase Database · checked Sep 1, 2026
21Partial evidenceCalgary, AB, Canada11-5015 contacts →

Partial evidence

“When you hire one of our lawyers, you hire the whole family law team.”

Source: RevenueBase Database · checked Sep 1, 2026
22Indirect evidenceCalgary, AB, Canada11-5014 contacts →

Indirect evidence

“We redefine legal representation with a commitment to Doing Things Differently.”

Source: RevenueBase Database · checked Sep 1, 2026
23Partial evidenceMoncton, NB, Canada11-5013 contacts →

Partial evidence

“TANDEM Family Law | Droit de la famille helps families navigate the legal system and provide peace of mind to them by giving top-notch advice and assistance when handling their…”

Source: RevenueBase Database · checked Sep 1, 2026
24Partial evidenceWinnipeg, MB, Canada11-5013 contacts →

Partial evidence

“Winnipeg based law firm offering services in family law, real estate, estate planning and administration, and business law.”

Source: RevenueBase Database · checked Sep 1, 2026
25Partial evidenceCalgary, AB, Canada11-5013 contacts →

Partial evidence

“We are Southeast Calgary's dedicated family law firm.”

Source: RevenueBase Database · checked Sep 1, 2026

Showing 25 of 610 domestic relations law firms based in Canada

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Domestic relations law firms based in Canada at a glance

As of Sep 1, 2026
51.1%Verified-email coverage
5.9%Mobile-number coverage
6.8Average contacts per company
1-10Median size (employees)
15.2%Largest-city concentration · Toronto
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
431
11-50
152
51-200
10

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among domestic relations law firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Canada whose own description of what they do matches “domestic relations law firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names domestic relations law firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among domestic relations law firms, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 2,136 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names domestic relations law firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many domestic relations law firms are there based in Canada?

RevenueBase identified 610 domestic relations law firms headquartered in Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Mills & Mills LLP, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most domestic relations law firms?

Toronto leads with 93 headquartered companies, followed by Calgary (49) and Vancouver (33).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,136 verified decision-maker contacts tracked across these 610 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.